All good.

Makefile

+all:
+	gcc -g -O0 -fprofile-arcs -ftest-coverage coverage_demo.c
+
+report:
+	gcov -pcb coverage_demo.c
+	cat coverage_demo.c.gcov
+
+clean:
+	rm -f coverage_demo.c.gcov coverage_demo.gcda coverage_demo.gcno a.out

coverage_demo.c

+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+int main(int argc, char *argv[])
+{
+    uint32_t t1 = atoi(argv[1]);
+    uint32_t t2 = t1 < 8 && t1 > 2;
+    if (t1 < 7 && t1 > 3)
+        printf("3<%d<7 was true\n", t1);
+    else
+        printf("3<%d<7 was false\n", t1);
+    return 0;
+}